how did they ever think of that?(adsbygoogle = window.adsbygoogle || []).push({});

what's the reasoning behind?

sorry if it's stupid

bonus question: in a formula such as E=mc2, what is the significance of the square? what exactly does a multiplication such as these, or a fraction mean in physics? doest the square hold a special meaning, compared to the "common" multiplication?

thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# How does multiplying 2 segments give a surface?

**Physics Forums | Science Articles, Homework Help, Discussion**